The term Parallel has a number of important meanings:
This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title.
Parallel Channel Receiver to Position
By Steve Nix, About.com Guide
Filed In: ...
Parallel pipe removal: Consolidate parallel pipes into one hydraulically equivalent pipe.
Parallels, Passive Remote Sensing, Polar Axis, Prime Meridian, ...
parallel of latitude A circle, or approximation of a circle, on the surface of the Earth, parallel tot he Equator, and connecting points of equal latitude; a circle of the celestial sphere parallel to the ecliptic, ...
parallel 1. A property of two or more lines that is separated at all points by the same distance.
2. A horizontal line encircling the Earth at a constant latitude. The Equator is a parallel whose latitude is 0.
Parallel Channel Receiver
A continuous tracking receiver using multiple receiver circuits to track more than one satellite simultaneously.
Parallel Communications: Data transmission wherein multiple wires simultaneously carry one data bit at a time greatly increasing the rate that data can be sent over a single wire.
4 Parallel implementation: PSEUS
In section 3, we have shown that the module S7, which is implemented by the compute_area_std_deviate() function, is the slowest of all modules. This function computed for each basin.
[edit] parallel processing
The simultaneous use of more than one processor core to execute a single program.
parallels are equally-spaced horizontal lines
meridians are equally-spaced elliptical arcs
the whole map fits a 2:1 ellipse ...
Parallel through center , between standard parallels
Bonne
Classification: ...
Parallel - A horizontal line encircling the Earth at a constant latitude. The Equator is a parallel whose latitude is 0. Measures of latitude range from 0 to 90 north of the Equator and from 0 to -90 to the south.
Parallel filtering happens in such a way that the original raster map layer category values are used to produce the new category value.
parallels and meridians cross each other at right angles (note: not all projections with this appearance are conformal)
the Tissot Indicatrix is a circle everywhere, but its size varies ...
parallel
A parallel (of latitude) is a line on a map that represents an imaginary east-west circle drawn on the Earth in a plane parallel to the plane that contains the equator.
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Parallel Programming
Program specification
Program verification
Programming techniques
Software engineering ...
Parallel processing - The coordinated processing of a computer program by multiple processors that work on different parts of the program, using their own operating system and memory resources.
A parallel effort to coarse-time navigation is low TOW decode, that is, lowering the threshold at which it is possible to decode the TOW data.
The parallel behavior of diminishing pressures and densities out to 500 km follows this same general exponential pattern: ...
HYPERparallel's approach is somewhat different. The base map is converted from a line and polygon map (vector format) into grid maps, similar to the bitmap rendering of Figure 3.
Standard parallels are where the cone touches or slices through the globe.
The central meridian is opposite the edge where the cone is sliced open.
See Also: parallel, persistence
[data conversion] A method of data conversion in which data is encoded as a sequence, stored in a file, memory buffer, or other medium, and transmitted across a network connection.
PTOLEMY's PARALLELS
Used length of day variations of 1/4 hour on longest day (summer solstice). First parallel at 4 15'N, tenth at 36 N, 21st is Thule.
PTOLEMY's MERIDIANS ...
Editing on a parallel plane -- to lay out the center-line of our wall.
Using the Offset Tool to offset the edges of our wall
Closing polygons.
With standard parallels of 29.5 and 45.5 degrees, this projection is one commonly used to depict the United States. It was used by the USGS in their 1970 National Atlas.
First Standard Parallel 50:00:00 North latitude
Second Standard Parallel 58:30:00 North latitude
Latitude of projection origin 45:00:00 North latitude ...
Grids rarely run parallel to lines of Longitude and Latitude.
Besides ease of use, there is another advantage to a grid - on any given map it always covers the same amount of the Earth's surface. This is not true of a graticule system! ...
Like the equator, parallels are also considered circles of latitude or lines that circle the entire Earth.
Standard Meridian/Parallel
The line of control on a map projection; it is around this line that the alignment and scale of the map is determined. On most projections, distortion increases further from the standard line.
Winds flow roughly parallel to the isobars, as depicted in the schematic below.
This relationship is observed on real surface maps.
Shelving should run parallel to the direction of airflow and perpendicular to ceiling light fixtures, if possible. Leave a few inches of free space between the shelving unit and the wall to allow for circulation.
Graticule The designated grid of parallels and meridians on the earth and a map. Grid Data
One of many data structures commonly used to represent geographic entities.
A large sand dune that forms parallel to the direction of a strong wind that blows in a consistent direction throughout the year. Also called a longitudinal dune.
Seismic Discontinuity: ...
In areas where multiple highways run in parallel, SA made it difficult to determine which one the car was on. Terminating SA will eliminate such problems, leading to greater consumer confidence in the technology and higher adoption rates.
The name will be positioned parallel to the neatline; the text size may be reduced to accommodate the space restriction. Keep the name close to the neatline to clearly identify the area.
In parallel, the development of a public domain GIS was begun in 1982 by the U.S. Army Corp of Engineering Research Laboratory (USA-CERL) in Champaign, Illinois, a branch of the U.S.
Oracle9i continues to provide many advances that Oracle first brought to market and that customers have come to take for granted, such as scalable connectivity, read consistency, Oracle® Parallel Server (OPS), and views.
latitude/longitude (Lat/Long) The fundamental geographic coordinate system, consisting of parallel lines of latitude circling the globe in an east-west direction and north-south lines of longitude (meridians) that converge at the poles.
In a cylindrical projection, for example, the lines of latitude (parallels) of the selected ellipsoid are simply drawn as straight, parallel lines.
Lines of constant latitude run around the globe parallel to the equator. Longitude is the number of degrees east or west of the prime meridian. Latitude runs from 0 to 90 degrees and longitude runs from 0 to 180 degrees.
Some of the latest GIS research under way at ORNL involves developing software for use on parallel-processing supercomputers.
The Mercator projection can be visualized as a spheroid projected onto a cylinder tangent to the equator and parallel to the polar axis (Figure 4-2). When the cylinder is opened and flattened, a distortion appears.
Cylindrical Equal-Area projections have straight meridians and parallels, the meridians are equally spaced, the parallels unequally spaced. There are normal, transverse, and oblique cylindrical equal-area projections.
The latter name reflects the fact that it was originally discovered by mathematicians seeking a geometry which failed to satisfy Euclid's parallel postulate.
Lambert Conformal Conic - A conic, confromal projection typically intersecting parallels of latitude, standard parallels, in the northern hemisphere.
A four-sided figure, bounded by parallels of latitude and meridians of longitude, used as an area unit in mapping. A well-known map series is the USGS 7.5-minute topographic quadrangle. Each map in this map series covers 7.
This form of the projection, however, is seldom used in practice, and the term "cylindrical projection" is used instead to refer to any projection in which lines of longitude are mapped to equally spaced parallel lines and lines of latitude ...
Geometrically, addition is vector addition by the parallelogram law: the sum (s, t) of two complex numbers is the unique point that makes the sequence of points (0, 0), (x, y), (s, t), (u, v) into a parallelogram.
If we line up the Z-axis parallel to the Earth's axis of rotation (from North pole to South) and if we line up the x/y axes so that positive X-axis intersects the Greenwich meridian (longitude 0°) we've completely defined (with the exception of a few ...
The polyconic projection (from the Greek, "poly" meaning many), envelopes the globe with an infinite number of cones, each with its own standard parallel. The parallels are non-concentric, while the central meridian is straight.
The classic Snapping environment is also supported as are precision-creation options such as parallel, perpendicular, deflection, and absolute XYZ.
Create and delete individual features.
The latitude of a point on the earth's surface is given by the point's angular distance north or south of the equator. If we slice the earth with a plane parallel to the plane of the equator, ...
Problem areas included the North Pacific south of the Aleutians, a region marred by parallel north-south artifacts; the Atlantic off the US east coast; and, radiating linear artifacts found near Cape Town, Honolulu, and Tokyo.
isoclinal fold A fold in which the limbs are parallel.
isograd A line on a map joining points at which metamorphism took place under similar temperature and pressure conditions, as indicated by rocks belonging to the same metamorphic facies .
The experiments made by myself [26] and other authors (e.g. [27]) demonstrate clearly, that the ANN method parallel with other approaches (e.g. 'mixture of experts' in [27]) trustworthily maps (approximates) the spatial function over its entire ...
Individual license with a USB (or parallel port) dongle. Note: The old parallel port dongle may still work with the latest release but the key is no longer supported.
horizontal -- tangent to the geoid or parallel to a plane that is tangent to the geoid.
implicit -- method of identifying positions by a place in an array of values.
interior area -- an area not including its boundary.
Because the lines of latitude are parallel and evenly spaced, a degree of latitude represents a constant distance on the ground. This makes plotting latitude quite straight forward.
A coordinate system is usually defined by a map projection, a spheroid of reference, a datum, one or more standard parallels, a central meridian, and possible shifts in the x- and y-directions to locate x,y positions of point, line, ...
 See also: Area, Map, Information, Feature, Model
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